Handling VP8 bitstream resolution changes

Benjamin Trent ben.w.trent at gmail.com
Mon Oct 13 11:39:33 PDT 2014


Alright, looks like the signalling of the resolution changes are handled
correctly in 1.4.3. False alarm :)

On Mon, Oct 13, 2014 at 1:19 PM, Benjamin Trent <ben.w.trent at gmail.com>
wrote:

> It would seem that the latest gstreamer-1.0 implementation cannot handle
> dynamic resolution changes in a VP8 bitstream.
>
> This is evident in not being able to cleanly play a decrypted, demuxed
> WebRTC VP8 bitstream coming from Chrome.
>
> The vp8dec element will at times through a segfault, other times would
> change the output drastically(only showing part of the image), or would
> show image artifacts in the bottom right part of the frame.
>
> Where would this need to be patched? As of right now, it would seem that
> the vp8dec element is not complient with the rfc
> http://tools.ietf.org/html/rfc6386(see section-9.1) and needs to be
> updated.
>
> Has anybody else ran into this issue?
>
> For more details see this webrtc discussion:
> https://groups.google.com/forum/#!topic/discuss-webrtc/XjUkEOcx3ww
>
>
>
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